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  <title>Binds variables to a prepared statement for result storage</title>

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  <h1 class="refname">mysqli_stmt::bind_result</h1>
  <h1 class="refname">mysqli_stmt_bind_result</h1>
  <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">mysqli_stmt::bind_result</span> -- <span class="refname">mysqli_stmt_bind_result</span> &mdash; <span class="dc-title">Binds variables to a prepared statement for result storage</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-mysqli-stmt.bind-result-description">
  <h3 class="title">说明</h3>
  <p class="para">面向对象风格</p>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>mysqli_stmt::bind_result</strong></span>
    ( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter reference">&$var1</code></span>
   [, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter reference">&$...</code></span>
  ] )</div>

  <p class="para rdfs-comment">过程化风格</p>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>mysqli_stmt_bind_result</strong></span>
    ( <span class="methodparam"><span class="type"><a href="class.mysqli-stmt.html" class="type mysqli_stmt">mysqli_stmt</a></span> <code class="parameter">$stmt</code></span>
   , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter reference">&$var1</code></span>
   [, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter reference">&$...</code></span>
  ] )</div>

  <p class="para rdfs-comment">
   Binds columns in the result set to variables.
  </p>
  <p class="para">
   When <span class="function"><a href="mysqli-stmt.fetch.html" class="function">mysqli_stmt_fetch()</a></span> is called to fetch data, the
   MySQL client/server protocol places the data for the bound columns into
   the specified variables <em><code class="parameter">var1, ...</code></em>.
  </p>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <p class="para">
    Note that all columns must be bound after 
    <span class="function"><a href="mysqli-stmt.execute.html" class="function">mysqli_stmt_execute()</a></span> and prior to calling
    <span class="function"><a href="mysqli-stmt.fetch.html" class="function">mysqli_stmt_fetch()</a></span>.
    Depending on column types bound variables can silently change to the
    corresponding PHP type.
   </p>
   <p class="para">
    A column can be bound or rebound at any time, even after a result set has
    been partially retrieved. The new binding takes effect the next time 
    <span class="function"><a href="mysqli-stmt.fetch.html" class="function">mysqli_stmt_fetch()</a></span> is called.
   </p>
  </p></blockquote>
 </div>


 <div class="refsect1 parameters" id="refsect1-mysqli-stmt.bind-result-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    <dt>
<em><code class="parameter">
stmt</code></em></dt>
<dd>
<p class="para">仅以过程化样式：由
<span class="function"><a href="mysqli.stmt-init.html" class="function">mysqli_stmt_init()</a></span> 返回的 statement 标识。</p></dd>

    
     <dt>
<em><code class="parameter">var1</code></em></dt>

     <dd>

      <p class="para">
       The variable to be bound.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-mysqli-stmt.bind-result-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-mysqli-stmt.bind-result-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-1664">
   <p><strong>Example #1 面向对象风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$mysqli&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">mysqli</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br />if&nbsp;(</span><span style="color: #0000BB">mysqli_connect_errno</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;prepare&nbsp;statement&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">$stmt&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">prepare</span><span style="color: #007700">(</span><span style="color: #DD0000">"SELECT&nbsp;Code,&nbsp;Name&nbsp;FROM&nbsp;Country&nbsp;ORDER&nbsp;BY&nbsp;Name&nbsp;LIMIT&nbsp;5"</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">execute</span><span style="color: #007700">();<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;bind&nbsp;variables&nbsp;to&nbsp;prepared&nbsp;statement&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">bind_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$col1</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$col2</span><span style="color: #007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;fetch&nbsp;values&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">while&nbsp;(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">fetch</span><span style="color: #007700">())&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$col1</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$col2</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;close&nbsp;statement&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">close</span><span style="color: #007700">();<br />}<br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">$mysqli</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

  </div>
  <div class="example" id="example-1665">
   <p><strong>Example #2 过程化风格</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$link&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_user"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"my_password"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"world"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/*&nbsp;check&nbsp;connection&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(!</span><span style="color: #0000BB">$link</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect&nbsp;failed:&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">mysqli_connect_error</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;exit();<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;prepare&nbsp;statement&nbsp;*/<br /></span><span style="color: #007700">if&nbsp;(</span><span style="color: #0000BB">$stmt&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">mysqli_prepare</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"SELECT&nbsp;Code,&nbsp;Name&nbsp;FROM&nbsp;Country&nbsp;ORDER&nbsp;BY&nbsp;Name&nbsp;LIMIT&nbsp;5"</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">mysqli_stmt_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;bind&nbsp;variables&nbsp;to&nbsp;prepared&nbsp;statement&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">mysqli_stmt_bind_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$col1</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$col2</span><span style="color: #007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;fetch&nbsp;values&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">while&nbsp;(</span><span style="color: #0000BB">mysqli_stmt_fetch</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s&nbsp;%s\n"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$col1</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$col2</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">/*&nbsp;close&nbsp;statement&nbsp;*/<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">mysqli_stmt_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #FF8000">/*&nbsp;close&nbsp;connection&nbsp;*/<br /></span><span style="color: #0000BB">mysqli_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

   <div class="example-contents"><p>以上例程会输出：</p></div>
   <div class="example-contents screen">
<div class="cdata"><pre>
AFG Afghanistan
ALB Albania
DZA Algeria
ASM American Samoa
AND Andorra
</pre></div>
   </div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-mysqli-stmt.bind-result-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="mysqli-stmt.get-result.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_get_result()</a> - Gets a result set from a prepared statement</span></li>
    <li class="member"><span class="function"><a href="mysqli-stmt.bind-param.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_bind_param()</a> - Binds variables to a prepared statement as parameters</span></li>
    <li class="member"><span class="function"><a href="mysqli-stmt.execute.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_execute()</a> - Executes a prepared Query</span></li>
    <li class="member"><span class="function"><a href="mysqli-stmt.fetch.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_fetch()</a> - Fetch results from a prepared statement into the bound variables</span></li>
    <li class="member"><span class="function"><a href="mysqli.prepare.html" class="function" rel="rdfs-seeAlso">mysqli_prepare()</a> - Prepare an SQL statement for execution</span></li>
    <li class="member"><span class="function"><a href="mysqli-stmt.prepare.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_prepare()</a> - Prepare an SQL statement for execution</span></li>
    <li class="member"><span class="function"><a href="mysqli.stmt-init.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_init()</a> - 初始化一条语句并返回一个用于mysqli_stmt_prepare(调用)的对象</span></li>
    <li class="member"><span class="function"><a href="mysqli-stmt.errno.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_errno()</a> - Returns the error code for the most recent statement call</span></li>
    <li class="member"><span class="function"><a href="mysqli-stmt.error.html" class="function" rel="rdfs-seeAlso">mysqli_stmt_error()</a> - Returns a string description for last statement error</span></li>
   </ul>
  </p>
 </div>


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